BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 200 69%
2 United States 34 11.7%
3 Netherlands 17 5.9%
4 Germany 10 3.4%
5 Taiwan 9 3.1%
6 Hong Kong 8 2.8%
7 Japan 3 1%
8 Canada 2 0.7%
9 United Kingdom 2 0.7%
10 Singapore 2 0.7%
11 Australia 1 0.3%
12 Estonia 1 0.3%
13 Portugal 1 0.3%